Stemco 449 4973 Pro Torq Axle Spindle Nut 8 Point Socket 4 3 8" Sealing Washer Automann: TMR537 Automann: TMR537 Hendrickson: S 13032 Representative applications: Class 8 tractors and straight trucks using Meritor RT Manufacturer Stemco Part Number 449 4973 Part Type Pro Torq Axle Spindle Nut (with keeper) Axle Position Drive axle Thread 3 1 4–12 Drive 8 point external flange — requires 4 3 8 in 8 point socket Outer Bearing Cup Cone 580 572 Replacement Keeper Stemco 450 4973 Applications
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